Best Keto Calculator Apps

245+ iOS apps curated and reviewed

4.0 avg rating
19 free apps
Updated August 2026

With an average user rating of 4.0★, the keto calculator category is one of the App Store's strongest. Browse all 245+ apps we track, sorted so the most loved ones surface first.

Compare top Keto Calculator Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Carb Manager: Keto & Macro LogCarb Manager: Keto & Macro LogFree4.8★ (733K)NoYesSep 2026
2Keto Calculator - Keto BuddyKeto Calculator - Keto BuddyFree4.6★ (8.4K)NoNoSep 2026
3Keto diet app-Low carb managerKeto diet app-Low carb managerFree4.6★ (62K)NoYesSep 2026
4Stupid Simple Keto Diet AppStupid Simple Keto Diet AppFree4.6★ (8.9K)NoYesSep 2026
5Keto Diet App - Carb TrackerKeto Diet App - Carb TrackerFree4.7★ (82K)NoYesSep 2026
6Keto Diet App: Keto ManagerKeto Diet App: Keto ManagerFree4.7★ (9.4K)NoYesSep 2026
7Keto Diet App & RecipesKeto Diet App & RecipesFree4.7★ (29K)NoYesSep 2026
8My Keto Scanner: Carb CheckerMy Keto Scanner: Carb CheckerFree4.7★ (314)YesYesSep 2026

Top Picks for Keto Calculator

Carb Manager: Keto & Macro Log#1

Carb Manager: Keto & Macro Log by Wombat Apps LLC

Calorie Counter & Diet Tracker
Editor's Choice
💪 Health & Fitness
4.8😊(733K ratings)
FreeIn-App Purchases
Carb Manager: Keto & Macro Log screenshot 1
Carb Manager: Keto & Macro Log screenshot 2
Carb Manager: Keto & Macro Log screenshot 3
Carb Manager: Keto & Macro Log screenshot 4
Carb Manager: Keto & Macro Log screenshot 5
Carb Manager: Keto & Macro Log screenshot 6

Easily track carbs, macros, and calories for low-carb and keto diets. Features include barcode scanning, recipe access, and community support to help you achieve your health goals.

What We Love

  • 🚀 Easy to use
  • 🔒 Comprehensive tracking
  • 👍 Helpful for keto/low-carb diets
  • 👍 Useful recipes and meal plans
  • 👍 Syncs with fitness devices
  • 👍 Detailed macro and nutrient breakdown

Room to Improve

  • 🐛 Inaccurate food database
  • 🐛 Buggy and crashes frequently
  • 🐛 Clunky interface and navigation
  • 🔒 Paywall for many features
  • 👎 Limited metric options (e.g. grams)
  • 👎 Slow performance and loading times
Keto Calculator - Keto Buddy#2

Keto Calculator - Keto Buddy by Compumaster Ltd

Keto/low carb macro calculator
Strong Contender
💪 Health & Fitness
4.6😐(8.4K ratings)
Free
Keto Calculator - Keto Buddy screenshot 1
Keto Calculator - Keto Buddy screenshot 2
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Keto Calculator - Keto Buddy screenshot 4
Keto Calculator - Keto Buddy screenshot 5

Calculate your ideal macronutrient intake for ketogenic and other low-carb diets. This free tool helps you determine the right balance of fat, protein, and carbohydrates based on your individual goals and needs.

What We Love

  • 👍 Good so far
  • 👍 Convenient and easy to use
  • 👍 Helpful resource
  • 👍 Precise and informative

Room to Improve

  • 🤔 Confusing interface
  • 🤔 Lacks functionality
  • 💰 Expensive
  • 🤷‍♀️ Doesn't work as expected
  • 🔍 Hard to read results
Keto diet app-Low carb manager#3

Keto diet app-Low carb manager by Zinaida Davydova

Macros tracker & counter
Worth Considering
💪 Health & Fitness
4.6😐(62K ratings)
FreeIn-App Purchases
Keto diet app-Low carb manager screenshot 1
Keto diet app-Low carb manager screenshot 2
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Keto diet app-Low carb manager screenshot 6

This app acts as your personal keto nutritionist, simplifying weight loss by tracking macros and food intake. It offers a custom macro plan, extensive food database with barcode scanning, and helpful features like meal plans and recipe creation.

What We Love

  • 🚀 Easy to use
  • 🚀 Helpful for Keto diet
  • 🚀 Barcode scanning feature
  • 🚀 Customizable macros
  • 🚀 Affordable subscription
  • 🚀 Integrates with health apps

Room to Improve

  • 🐛 Inaccurate food database
  • 🐛 Frequent crashes and glitches
  • 🐛 Limited functionality in free version
  • 🐛 Disappearing data and recipes
  • 🐛 Confusing subscription model
  • 🐛 Poor customer support

More Keto Calculator apps to explore

FAQ about Keto Calculator

What are the best keto calculator apps for iPhone?
Carb Manager: Keto & Macro Log tops our keto calculator apps ranking as of August 2026, with a 4.8-star average from 733K App Store ratings, and it's free to download.
Yes — 19 of the top keto calculator apps we rank are free to download, including Carb Manager: Keto & Macro Log and Keto Calculator - Keto Buddy.
Carb Manager: Keto & Macro Log has no ads and offers in-app purchases, according to its App Store listing as of August 2026.
We track 245+ keto calculator apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Carb Manager helps users track their carbohydrate intake, macros (protein, fat, carbs), and calories, making it simple to follow low-carb and ketogenic diets. It offers tools for logging meals, scanning barcodes, and accessing recipes to support a healthy lifestyle.
Key features include unlimited free barcode scanning, free net carb tracking, a macro calculator, calorie counter, intermittent fasting tracker, over 5,000 keto recipes, and community support. Premium features offer advanced diabetes tracking and carb cycling tools.

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